Response of Growth and Physiological Characteristics of Transplanted Cotton Following Wheat Harvest to Water Deficit
Abstract：The influences of water deficit at the different growing stages on growth and physiological characteristics of transplanted cotton following wheat harvest were studied in lysimeters under a rainshelter.The results showed that normal growth and development of plant was suppressed by water deficit at the bud stage,the plant growth indexes such as height,stem diameter and leaf area index were decreased with water deficit increasing,but the effect of water deficit on them was small at the flowering and boll-setting stage.There was a logarithm positive correlation with determination coefficient above 0.90 between the number of bud and boll and leaf area index.No matter the bud stage or flowering and boll-setting stage,water deficit greatly improved soluble sugar content and malondialdehyde（MDA） content of leaves compared with control treatment,and soluble sugar content and MDA content increased with water deficit which inhibited the normal development of cotton bolls.After rewatering,soluble sugar and MDA content reduced,while no obvious differences existed between the rewatered treatment and control treatment.This study will provide a physiological basis for high efficient water management in transplanted cotton following wheat harvest.
Keywords：transplanted cotton following wheat harvestwater deficitgrowthsoluble sugarmalondialdehyde
Publication Date：2012-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 14-18 )